Apparatus, system and method for detecting content of total organic carbon in gas

A technology of total organic carbon and detection device, applied in the field of monitoring, can solve the problems of inclusion of all organic substances, detection errors, inability to be used as description parameters, etc., to reduce detection costs, avoid measurement errors, and reduce detection accuracy.

Active Publication Date: 2022-03-01
PEKING UNIV
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  • Abstract
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Problems solved by technology

[0003] The detection method in the related art is selective for the types of organic substances to be measured, and does not include all organic substances. It is impossible to know how many organic substances have not been detected, so it cannot be used as a parameter to describe the content of total organic substances.
In addition, in the detection method in the related art, the sampling gas is pumped into the room from the outside, and the inner wall of the gas pipeline will adsorb organic matter, resulting in detection errors

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[0029] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; A more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the protection scope of the present disclosure.

[0030] In describing the present disclosure, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientations or positional relationships in...

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Abstract

The invention relates to a device, system and method for detecting the content of total organic carbon in gas, and the device comprises a reaction unit which comprises a gas flow channel, the gas flow channel comprises a gas inlet and a gas outlet, and the gas can enter the gas flow channel through the gas inlet under the action of suction and is output through the gas outlet after flowing through the gas flow channel; and the reaction temperature providing unit is configured to provide a catalytic oxidation temperature for the reaction unit so as to catalytically oxidize total organic carbon in the gas into inorganic carbon in the process that the gas flows through the gas flow passage. The system comprises the device, a sampling device, an inorganic carbon detection device and a determination device, the sampling device collects gas, and the inorganic carbon detection device determines the total content of inorganic carbon based on the gas input by the device and determines the background content of inorganic carbon based on the gas input by the sampling device. The determination device determines the total organic carbon content based on the total inorganic carbon content and the background inorganic carbon content. And the detection error and the cost are reduced.

Description

technical field [0001] The present disclosure relates to the technical field of monitoring, and more specifically, the present disclosure relates to a device, system and method for detecting the content of total organic carbon in gas. Background technique [0002] The atmosphere contains a large amount of total organic carbon (TOC, Total Organic Carbon), including volatile organic compounds (VOCs, Volatile Organic Compounds), low-volatile organic compounds and organic aerosols, which can change the concentration of free radicals in the air and affect the atmosphere chemical process. In addition, VOCs are important precursors of ozone and organic aerosols, both of which have an important impact on human health and the climate environment. In addition, total organic carbon deposited on the ground can affect the carbon cycle of the ecosystem. Because the volatility of organic matter in the atmosphere is very different, organic matter exists in various forms in the atmosphere,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/10
CPCG01N31/10
Inventor 李少萌谢聪慧
Owner PEKING UNIV
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